Build netmap fails with CentOS 6.5

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What steps will reproduce the problem?
1.git clone netmap on centOS.65
2.proceed to make
3.errors 

What is the expected output? What do you see instead?
make should succeed

What version of the product are you using? On what operating system?
centOS 6.5
last version of netmap from git

Please provide any additional information below.

  CC [M]  /home/devuser/Documents/netmap/LINUX/netmap_common.o
/home/devuser/Documents/netmap/LINUX/../sys/dev/netmap/netmap.c: In function 
‘netmap_attach’:
/home/devuser/Documents/netmap/LINUX/../sys/dev/netmap/netmap.c:2689: error: 
‘struct ethtool_ops’ has no member named ‘set_channels’
make[2]: *** [/home/devuser/Documents/netmap/LINUX/netmap_common.o] Error 1
make[1]: *** [_module_/home/devuser/Documents/netmap/LINUX] Error 2
make[1]: Leaving directory 
`/home/devuser/rpmbuild/BUILD/kernel-2.6.32-431.20.3.el6/linux-2.6.32-431.20.3.e
l6.x86_64'
make: *** [netmap] Error 2

Original issue reported on code.google.com by morgan.y...@gmail.com on 16 Oct 2014 at 12:04